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Tantalum Mineral Data
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General Tantalum Information
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 Chemical Formula: |
Ta |
| Composition: |
Molecular Weight = 180.95 gm |
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Tantalum 100.00 % Ta |
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______ |
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100.00 % |
| Empirical Formula: |
Ta |
| Environment: |
Alluvial placer deposits. |
| IMA Status: |
Not Approved IMA |
| Locality: |
Primorskiy Kray, near Osimovka and Abramovka Rivers, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Greek, Tantalos = father of Niobe. |
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Tantalum Crystallography
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| Cell Dimensions: |
a = 3.3058, Z = 2; V = 36.13 Den(Calc)= 16.63 |
| Crystal System: |
Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: I m3m |
| X Ray Diffraction: |
By Intensity(I/Io): 2.34(1)(110), 1.35(0.35)(112), 1.65(0.17)(200),1.17(0.11)(220), |
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Physical Properties of Tantalum
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| Color: |
Grayish yellow. |
| Habit: |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. |
| Luminescence: |
Non-fluorescent. |
| Magnetism: |
Nonmagnetic |
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Calculated Properties of Tantalum
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| Electron Density: |
Bulk Density (Electron Density)=13.4 gm/cc
note: Specific Gravity of Tantalum =16.6 gm/cc.
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| Fermion Index: |
Fermion Index = 0.00012
Boson Index = 0.99988 |
| Photoelectric: |
PETantalum =1,276.15 barns/electron
U=PETantalum x rElectron Density=17123.55 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tantalum is Not Radioactive |
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Tantalum Classification
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| Dana Class: |
01.00.00.00 (01)Native Elements |
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(01.00)Without Dana Classification Numbers |
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(01.00.00)Metals |
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01.00.00.00 Antitaenite* gamma-Fe3Ni Unk Cubic |
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01.00.00.00 Goldamalgam* (Au,Ag)Hg I m3m 4/m 3 2/m |
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01.00.00.00 IMA2007-036 TiFeSi2 Pbam 2/m 2/m 2/m |
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01.00.00.00 Rhenium* Re P 63/mmc 6/m 2/m 2/m |
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01.00.00.00 Tantalum* Ta I m3m 4/m 3 2/m |
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01.00.00.00 Titanium* Ti P 63/mmc 6/m 2/m 2/m |
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01.00.00.00 Tongxinite* Cu2Zn Unk Cubic |
| Strunz Class: |
01.XX.00 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides) |
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01.X - Unclassified Strunz ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, pho |
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01.XX -Metals |
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01.XX.00 Tantalum* Ta I m3m 4/m 3 2/m |
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01.XX.00 Hexamolybdenum! (Mo,Ru,Fe,Ir,Os) P 63/mmc 6/m 2/m 2/m |
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01.XX.00 Brownleeite! MnSi P 213 2 3 |
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Other Tantalum Information
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| References: |
PHYS. PROP.(Dana) |
| See Also: |
Links to other databases for Tantalum :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info
11 - WWW-MINCRYST
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Print or Cut-and-Paste your Tantalum Specimen Label here :
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Tantalum
Ta
Dana No: 01.00.00.00 Strunz No: 01.XX.00
Locality:
Notes:
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